lake Toba in North Sumatra
Lake Toba is the heart of the beautiful lakes of northern Sumatra. Beautiful scenery and wonderful climate makes the area around the popular tourist attraction in Indonesia. It is the largest lake in Southeast Asia, is measured 100 kilometers long. Fertile land around the lake by volcanic eruptions. Dodd Batak Toba Lake, tradition and tribal culture and Samosir island attracts tourists from all over the world.
Geologi Lake Toba
Lake Toba is a lake and supervolcano, Its North Sumatra, Prapat City. 100 kilometres long and 30 kilometres wide, and 505 metres (1,666 ft) at its deepest point. Located in the middle of the northern part of the Indonesian island of Sumatra with a surface elevation of about 900 metres (2,953 ft), the lake stretches from 2°53′N 98°31′E / 2.88°N 98.52°E / 2.88; 98.52 to 2°21′N 99°06′E / 2.35°N 99.1°E / 2.35; 99.1. It is the largest volcanic lake in the world.
In addition, it is the site of a supervolcanic eruption that occurred 69,000-77,000 years ago,a massive climate-changing event. The eruption is believed to have had a VEI intensity of 8. This is the largest known eruption anywhere on Earth in the last 25 million years. According to the Toba catastrophe theory to which some anthropologists and archeologists subscribe, it had global consequences, killing most humans then alive and creating a population bottleneck in Central Eastern Africa and India that affected the genetic inheritance of all humans today.
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